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Expired Canadian patentCanada

Method for expressing polypeptides in cyanobacteria

CA 2082802 C · Owner: Hagiwara, Hideaki · Inventors: Hagiwara, Hideaki; Takeshima, Yasunobu

CIPO record

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Abstract From the Canadian patent

A method for expressing a physiologically active polypeptide in cells of a blue-green alga by transforming the cells of a blue-green alga with a recombinant DNA containing a structural gene encoding the polypeptide, characterized in that as the recombinant DNA is used a recombinant DNA which contains a structural gene encoding the physiologically active polypeptide the, transcription initiation region of the RuBisCO gene of Anacystis nidulans located upstream of the structural gene, and the transcription termination region of the RuBisCO gene located downstream of the structural gene. According to this method physiologically active, polypeptide can efficiently be expressed using blue-green …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed March 11, 1992 and granted July 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 11, 1992
GrantedJuly 29, 2003
Term endedMarch 11, 2012
Patent numberCA 2082802 C
Classification (IPC)C12N15/74 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMarch 11, 1992Patent grantedJuly 29, 2003Term endedMarch 11, 2012

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.